Regarding the Social Security “Chained Consumer Price Index”

So, let me get this straight. If I like $5 hamburgers and inflation rises so that my favorite burger costs $7 I am forced to respond by switching to a crappier burger that previously cost $3 but now (due to inflation) costs $5. Because I’ve switched to a new $5 burger (that sucks), inflation doesn’t exist? I’m still eating an inferior burger to what I previously was eating.

How is this supposed to work for things that don’t have cheaper alternatives? What about a gallon of regular unleaded gas? What about a gallon of milk? I guess we’ll find jobs closer to our houses and water down our milk? That’s supposed to mean that inflation isn’t occurring?